Pneumatic auto-tire.



f.' wi KREMER, PNEuMAUc-Aumrmg.

APPLICATION FILEDAPR. 2z. |911,

' Ptllted Feb. 19, 1918.`

2 SHEETS-SHEET l.

Inventor Witnesses srafrns rai-nur crm.

FRANKLIN VJ'. KREMER, GF RUTHERFORD, NEW JERSEY.

rnnuiua'ric auro'rinn.

Application filed April 21, 1911.

To aZZ whom t may concern Be it known that l, FRANitLiN W. KRE- State of New Jersey, have invented a new and useful Pneumatic Auto-Tire, of which the following is a specification. 1

By way of explanation, l will statethat multiply vehicle tires are commonly fashioned upon a circular core, certain of the layers of the tire being stretched around the "core, the stretching tension being applied circumferentially of the core. rlhis operation stretches these layers along their longitudinal centers,`the edges of these layers, however remaining relatively slack. AThe result of` this method of procedure is that in the finished tire, there is a lack of uniformity in the stretch of the material. The tire, therefore, is relatively strong at one point, and relatively weak at other points.

lt is `one object of the present invention to remedy the above'mentioned, undesirable features, by introducing into the tire structure, a plurality of crossed, reinforcing strips, whereby, after the constituent material of the tire has been stretched tightly, circumferentially of the core, the material may likewise be stretched tightly, transversely of the core. A further object of the invention is to provide a vvehicle tire, in which the heat, generatedby friction adjacent the periphery of the tire, will be prevented from penetrating into the interior of the tire, the heating of the contained air of the tire obviously causing the same to en pand, whereby blow-outs frequently are occasioned. A further object of lthe invention is to strengthen generally, devices or" this class, and to provide novel means for assembling the constituent elements of a multiply tire.`

W ith the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parte and in the detils of construction hereinafter described and claimed, itk being understood changes in 'the precise embodii ent of invenL tion herein disclosed can be within the scope of what is claimed witnoit departing from the spirit of the invention.

the drawings,- 'gare L shows the invention Specification of Letters Patent.

retenue ieee. ia, 191s.

Serial No. 622,506. A

verse section; and Fig. 2 is atop plan, successive layers of the tire being broken away. In carrying out the invention, there is provided aiming 1,-- preferably fashioned from rubber. Superposed upon the lining l 1s a strip 2 of refractory'material, preferably asbestos. Superposed upon the layer of asbestos, are crossed reinforcing strips 3, ordinarily of canvas or otherteXtile material. These reinforcing strips 3 extend around the tire transversely, at an acute angle to the axis of the tire. i v

Superposed upon the reinforcing strips 3 is the body member 4 of the tire, the same being preferably canvas. Upon the body member 4 is the cushion portion 5 of the tire, the same being ordinarily rubber. Beyond the cushion 5 are the breaker strips 6, extended circumferentially of the tire, these breaker strips being commonly made of canvas or other textile material. rlhe outer member of the tire is represented. by the tread/ 7, the Same-being preferably of rubber. Y I

Extended alongthe sides of the tire, are ribsS, .the same being generally made of rubber. As Shown at 9 the ends of the crossed reinforcing strips 3, are passed around and engaged with the ribs 8. The tread and the cushion 5 preferably terminate slightly above the ribs 8, the edges 10 of the body member being carried around the ribs 8 and around the ends of the reinforcing strips 3, the extreme edge portions of the body member l beinG when desired,

den

overlapped slightly upon the inner 'face of the lining l, as shown at lt will of course be understood that in theprocess of manufacture, all of the several elements hereinbefcre'referred to, are tightly secured together, so that the tire, as an entity, is a solid, compact structure.

lt will be seen that, owing to the presence of the reinforcing strips 3, the tire will have an even and equal tension throughout, all portions of the tire being of equal strength, and of equal efciency in repelling punctures and'wear.

.The inner, rubber lining l, renders the tire hermetic, and owing to the presence of the refractory asbestos strip 2, betwene the constituent layers of the tire, a heating of Ill@ 5L' l in ille uit, the construction of the 2. El ire comprising a lining a ea, devine :nell that ruptures in the 'fabric of layer of nen-combustible maerial between lle Life ,living the process ef manufacture, the trend and the lining7 and reinforcing will ne mxiiiled lie reinforcing strips Sgivstrips between the tread and said leyer and 2:: nl ee1`i1 i-iicli0n to lie tire. extending' from side ce Side of the ire in lliure' described the inventioin'wliat reverse-ly curved parallel lines to prevent rupture of said layer.

i linin ribs extend- 1n teetiinony that l claim the foregoing as mul lininge reinforcmy own, i have hereto :mixed my signature 25 and passing bein the presence of 'LW Wlnesses. fills :incl extend- 'l1 te side in re- FRNLN Vf. l EMRK.

i 'unen dial lini lining :in vlie life ing :si meen il ing new Yeielj: Cnifvefl panni. and l body inelnliev laced upon il rips; and eXtendvWiliiesses:

ine' e' ne Tir" lin e' its edges over- FRANK DE VITT, lappingy me f3'. J, liILLnR. 

